MCQ
____________ system of classification were based on natural affinities among the organisms:
- ANatural.
- BArtificial.
- CSexual.
- DPhycogentic.
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$(a)$ The leaflets are modified into pointed hard thorns in Citrus and Bougainvillea
$(b)$ Axillary buds form slender and spirally coiled tendrils in cucumber and pumpkin
$(c)$ Stem is flattened and fleshy in Opuntia and modified to perform the function of leaves
$(d)$Rhizophora shows vertically upward growing roots that help to get oxygen for respiration
$(e)$ Subaerially growing stems in grasses and strawberry help in vegetative propagation
Choose the correct answer from the options given below:
$\begin{array}{|l|l|} \hline Column\;-I & Column\;-II \\ \hline 1.\;Metaphase & p.\;Chromosomal\;material\;condensed \\ \hline 2.\;Prophase & q.\;Nucleolus\;reform \\ \hline 3.\;Anaphase & r.\;Spindle\;fibre\;attach\;to\;kinetochores \\ \hline 4.\;Telophase & s.\;Chromatids\;move\;to\;opposite\;poles \\ \hline \end{array}$